In the present study, the defluoridation capabilities and adsorption mechanisms of cryptocrystalline magnesite were evaluated. All experiments were done by batch procedure. Conditions assessed include time, dosage, concentration, pH and the effects of competing ions. Optimum defluoridation conditions were observed to be 20 g/L magnesite, 2:100 solid:liquid ratio, 20 min of agitation and 60 mg/L fluoride concentration. Adsorption of fluoride by magnesite was observed to be independent of pH. Cryptocrystalline magnesite showed >99% efficiency for fluoride removal. Adsorption kinetics fitted better to a pseudo-second order than a pseudo-first order thus confirming chemisorption. Adsorption data fitted better to a Langmuir than a Freundlich adsorption isotherm thus confirming monolayer adsorption. Cryptocrystalline magnesite successfully removed excess fluoride from aqueous solution to below Department of Water Affairs and Forestry water quality guidelines. As such, this material can be used for a point source defluoridation technique in rural areas and households in South Africa and other developing countries. Based on comparison studies, cryptocrystalline magnesite proved to have high adsorption capacity for fluoride removal and can be used as a substitute for conventional treatment methods.
How to Choose the Best Wastewater Treatment System for Your Plant
For industrial companies producing wastewater as a byproduct of their process, some type of wastewater treatment system is usually necessary. Failing to properly treat your wastewater can potentially harm the environment, human health, and your process, in addition to causing your facility to incur heavy fines and possible legal action if it is being improperly discharged into a publicly owned treatment works (POTW) or to the environment under a National Pollutant Discharge Elimination System (NPDES permit). The...
What Is a Cooling Tower Water Treatment System and How Does It Work?
For industrial companies using a cooling tower for its facility, some type of cooling tower water treatment system is usually necessary to ensure an efficient process and long equipment service life. If cooling tower water is left untreated, organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the road. Butwhat is a cooling tower water treatment system and how does it work? This article breaks down the basics below: Wha...
How Do You Know If You Need a Cooling Tower Water Treatment System for Your Plant?
In order to keep your production flowing smoothly and avoid costly damage to your cooling tower equipment, the proper treatment of your cooling tower water is essential. If cooling tower water is not properly treated, organic growth, fouling, scaling, and corrosion can reduce plant productivity, cause plant downtime, and require costly equipment replacements down the road. But how do you know if you need a cooling tower water treatment system for your plant? Keep in mind thattreatment methods will vary depending...
Common Cooling Tower Water Treatment Problems and How to Solve Them
For companies using cooling towers to remove heat from an industrial process or for cooling large buildings, there are several issues that can surface during the cooling tower water treatment process that we see on a regular basis. Because these issues occur often, it’s important to know what to look out for in advance, perhaps saving you some time and resources down the line. Keep in mind that these issues will vary depending on whether your cooling tower is an open recirculating system, once-through, or...
What Is a Boiler Feed Water Treatment System and How Does It Work?
For industrial companies using a boiler for its facility, some type of boiler feed water treatment system is usually necessary to ensure an efficient process and quality steam generation. The most appropriate boiler feed water treatment system will help the facility avoidcostly plant downtime,expensive maintenance fees, andboiler failure as a result of scaling, corrosion, and fouling of the boiler and downstream equipment. Butwhat is a boiler feed water treatment system and how does it work? The complex answer...